Start using Push anytime in the late Vegetative stage (Week 2 or 3) to the Flowering Stage Week 6 is ideal. Try and follow as close as possible to the recommended rate of 2 ml per 100 litres (1 eye dropper is about 1 ml).
 Push will increase your CBD, THCA, and THC (most cannabinoids) by 8-10% on average above what the strain normally produces.